Alert archive / New York / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 29, NWS Buffalo, NY

June 12, 20154 counties in New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jun 12, 2015, 3:14 PM EDT for 4 counties in New York. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 12, 2015, 3:14 PM EDT (19:14 UTC)
Expired: Jun 12, 2015, 4:15 PM EDT
In force: 61 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

Counties Erie County, NY, Genesee County, NY, Niagara County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 20 km from the middle of the area, began a volume at 19:14 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 12, 2:54 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.2 hours before the alert went out and 18 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1195 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 215 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

530 
WUUS51 KBUF 121914
SVRBUF
NYC029-037-063-121-122015-
/O.NEW.KBUF.SV.W.0029.150612T1914Z-150612T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
314 PM EDT FRI JUN 12 2015

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN NIAGARA COUNTY IN WESTERN NEW YORK...
  SOUTHWESTERN GENESEE COUNTY IN WESTERN NEW YORK...
  EAST CENTRAL ERIE COUNTY IN WESTERN NEW YORK...
  NORTHWESTERN WYOMING COUNTY IN WESTERN NEW YORK...

* UNTIL 415 PM EDT

* AT 314 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING
  WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 6 MILES SOUTHWEST OF NIAGARA FALLS TO 13 MILES
  NORTHWEST OF ANGOLA ON THE LAKE...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BUFFALO...WEST SENECA...LACKAWANNA...ELMA...MARILLA...ORCHARD
  PARK...ALDEN AND BLASDELL.

THIS INCLUDES INTERSTATE 90 BETWEEN EXITS 57 AND 55.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

&&

LAT...LON 4274 7876 4272 7862 4268 7835 4275 7890
      4278 7885 4284 7886 4291 7834
TIME...MOT...LOC 1914Z 263DEG 38KT 4302 7915 4283 7921 

$$

ZAFF

The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 10:16 AM EDT	Flash Flood Watch	BUF	Allegany, Cayuga, Jefferson, Lewis, Livingston, Monroe and 3 more	8 hr
Jun 12, 2:52 PM EDT	Severe Thunderstorm Warning	BUF	Livingston, Monroe, Ontario	38 min
Jun 12, 2:59 PM EDT	Special Marine Warning	BUF		61 min
Jun 12, 3:20 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Genesee, Niagara, Wyoming	55 min
Jun 12, 3:30 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua	60 min
Jun 12, 4:04 PM EDT	Severe Thunderstorm Warning	BUF	Genesee	26 min
Jun 12, 4:15 PM EDT	Severe Thunderstorm Warning	BUF	Erie, Livingston, Wyoming	60 min
Jun 12, 4:35 PM EDT	Special Weather Statement	BUF	Ontario	55 min
Jun 12, 4:40 PM EDT	Severe Thunderstorm Warning	BUF	Genesee, Livingston, Monroe, Ontario	65 min
Jun 12, 4:42 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Livingston	63 min
Jun 12, 5:20 PM EDT	Severe Thunderstorm Warning	BUF	Cayuga, Ontario, Wayne	32 min
Jun 12, 5:31 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	29 min
Jun 12, 5:39 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	21 min
Jun 12, 5:40 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Ontario	35 min

Nearby

Severe Thunderstorm Warnings in New York, 2015 Every severe thunderstorm warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.